Explanation of Sequence

UG #: The order the upgrade can be done. The numbering system goes from 0~4. If it shows 0~1, it is only able to be used for the first two upgrades; if it shows 0~4 then it is able to be used for all 5 upgrades.

Cost: The amount of gold needed to have the upgrade put on the item. (Note: There is no decrease in price on Alban Heruin/Wednesdays)

NPC: The NPC that offers the upgrade. There is no difference between the NPC's in price or proficiency.